for loop-:

for loop is a counter controlled loop,perhaps the most commonly used looping statement in C programming. It is used to repeatedly execute either a single or a group of statement for a finite number of times.
Syntax-:
for(Initialization;Testing;Increment/Decrement)                                                                      

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• Initialization-: This expression is used to initialize same parameter [called an index],that control the looping action.
• Testing Expression-: It represent a condition that must be TRUE for the loop to continue its execution.
• Increment/Decrement Expression-: It is a unary expression or an assignment expression.It increment or decrement the index so that the loop continue.

Example-:

#include<stdio.h>

#include<conio.h>

main()

{ int i=0;

   for(i=1;i<=5;i++)

   printf("\n %d",i);

   getch();

}

Output-: 1

                2

                3

                4

                5

Example-:write a program to find sum of series 1+2+3+----

#include<stdio.h>

#include<conio.h>

main()

{int i=0,term=0,s=0;

  printf("Enter the term");

  scanf("%d",&term);

  for(i=1;i<=term;i++)

  s=s+i;

  printf("\n sum=%d",s);

  getch();

}

Output-: Enter the term 3

               sum=7

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